When I first moved to Mastodon I was kind of frustrated that repeated boosts of the same 5-10 posts would clutter my timeline (though I'm guilty of mass boosting, too). Since I started using @ivory app, I've set up a "no boosts" filter that allows me to focus on original content every time I open the app— it's an actual "For You" feed. Every. Single. Time.
Then, I toggle the filter to *only* show me boosts to see what I've missed. A++
Highly recommend